1213214260 has 24 divisors (see below), whose sum is σ = 2548404936. Its totient is φ = 485160960.

The previous prime is 1213214251. The next prime is 1213214263. The reversal of 1213214260 is 624123121.

It can be written as a sum of positive squares in 4 ways, for example, as 224676 + 1212989584 = 474^2 + 34828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213214263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144580 + ... + 152740.

It is an arithmetic number, because the mean of its divisors is an integer number (106183539).

Almost surely, 2^1213214260 is an apocalyptic number.

1213214260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213214260 is an abundant number, since it is smaller than the sum of its proper divisors (1335190676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213214260 is a wasteful number, since it uses less digits than its factorization.

1213214260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15603 (or 15601 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1213214260 is about 34831.2253588644. The cubic root of 1213214260 is about 1066.5449624598.

Adding to 1213214260 its reverse (624123121), we get a palindrome (1837337381).

The spelling of 1213214260 in words is "one billion, two hundred thirteen million, two hundred fourteen thousand, two hundred sixty".